Description

Methacrylic Acid, 2-Hydroxyethyl Ester Diphenyl Phosphate is a specialized reactive phosphate ester monomer that combines the properties of a methacrylate with a flame-retardant phosphate group. This compound is engineered to provide both polymerizable functionality and flame retardancy in a single molecule, offering significant value in formulating advanced, high-performance materials. It is primarily sought after by manufacturers in the polymer, coatings, and specialty chemical industries seeking to enhance the fire safety and mechanical properties of their products.

Application

• As a reactive flame-retardant monomer in the production of UV-curable resins and coatings for electronics and optical fibers.
• As a key component in fire-resistant acrylic polymers used in construction materials and transparent panels.
• In the synthesis of specialty adhesives and sealants requiring enhanced fire safety ratings.
• As an additive or co-monomer in engineering plastics and composites to improve flame retardancy without compromising processability.
• For research and development of novel flame-retardant polymeric materials in academic and industrial laboratories.
• In the formulation of specialty inks and photoresists where chemical resistance and fire safety are critical.

Basic Information

Product Name	Methacrylic Acid, 2-Hydroxyethyl Ester Diphenyl Phosphate
CAS No.	16069-23-1
Molecular Formula	C19H21O7P
Molecular Weight	392.34 g/mol
Synonyms	2-Hydroxyethyl methacrylate phosphate; Diphenyl 2-(methacryloyloxy)ethyl phosphate; HEMA phosphate; Phosphoric acid, diphenyl ester, 2-hydroxyethyl methacrylate ester; Reactive phosphate ester monomer; FR monomer; CAS 16069-23-1
EINECS	240-197-3

Quality Control

Our Methacrylic Acid, 2-Hydroxyethyl Ester Diphenyl Phosphate is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency, purity, and performance for your specific application. Certificates of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is easily oxidized and should be handled under an inert atmosphere when appropriate for extended storage or transfer. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Acid Value	≤ 5.0 mg KOH/g
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.510 - 1.530
Density (20°C)	1.20 - 1.30 g/mL

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.